WO2001070144A1 - Käfigartiges zwischenwirbelimplantat - Google Patents
Käfigartiges zwischenwirbelimplantat Download PDFInfo
- Publication number
- WO2001070144A1 WO2001070144A1 PCT/CH2001/000179 CH0100179W WO0170144A1 WO 2001070144 A1 WO2001070144 A1 WO 2001070144A1 CH 0100179 W CH0100179 W CH 0100179W WO 0170144 A1 WO0170144 A1 WO 0170144A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cage
- side wall
- cage according
- front part
- rear part
- Prior art date
Links
- 239000007943 implant Substances 0.000 title claims abstract description 16
- 208000007623 Lordosis Diseases 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 13
- 229920002530 polyetherether ketone Polymers 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 7
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000003550 marker Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229920002492 poly(sulfone) Polymers 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000001506 calcium phosphate Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 4
- 229910000391 tricalcium phosphate Inorganic materials 0.000 claims description 4
- 229940078499 tricalcium phosphate Drugs 0.000 claims description 4
- 235000019731 tricalcium phosphate Nutrition 0.000 claims description 4
- -1 ether ether ketone Chemical class 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 229920001643 poly(ether ketone) Polymers 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 2
- 238000002372 labelling Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000003801 milling Methods 0.000 description 4
- 208000012287 Prolapse Diseases 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 208000037873 arthrodesis Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
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- 108010010803 Gelatin Proteins 0.000 description 1
- 229920004878 Ultrapek® Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
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- 230000003902 lesion Effects 0.000 description 1
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Classifications
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
- A61F2/4465—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
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- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
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- A61F2002/3011—Cross-sections or two-dimensional shapes
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- A61F2002/30133—Rounded shapes, e.g. with rounded corners kidney-shaped or bean-shaped
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- A61F2/3094—Designing or manufacturing processes
- A61F2002/30976—Designing or manufacturing processes using hydrojet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0015—Kidney-shaped, e.g. bean-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
- A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
- A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
Definitions
- the invention relates to a cage-like intervertebral implant and a method for its production according to patent claims 1 and 23 respectively.
- the individual vertebrae of the spine have a vertebral body, a vertebral arch, a spinous process, two transverse processes and two upper and two lower articular processes.
- the vertebrae are connected to the adjacent intervertebral discs (disci intervertebralis) and form the vertebral body (corpus vertebrae).
- the intervertebral disc consists of fluid-rich fiber cartilage and connects the individual vertebrae with each other.
- the size of the intervertebral discs increases from top to bottom in accordance with the loads occurring in the human body.
- the intervertebral discs serve as elastic buffers and dampen bumps.
- intervertebral discs can become besieged or that the inner gelatin nucleus (nucleus pulposus) can emerge through cracks in the connective tissue-like, cartilaginous, outer ring (annulus fibrosus).
- the intervertebral disc can partially enter the intervertebral holes (foramina intervertebralia) or the spinal canal.
- This prolapse can also be dorsal, medial or lateral.
- prolapses are most common on the L4-L5-S1 and C6-C7 vertebrales. If such prolapses are not treated, irreversible pressure damage to the nerve roots foramen or cross-sectional lesions will result.
- symptomatic physiotherapy such as physiotherapy or massage
- the intervertebral disc must be surgically removed. It is now possible to implant such an implant (cage), which means that arthrodesis can take place between the two vertebral bodies.
- An intervertebral implant is known from EP0916323-A1, which has a bean-shaped structure and can be inserted between the vertebrae.
- the implant has a wedge shape, which is given by a different height of the two longitudinal side walls.
- the walls surrounding the implant are provided with rows of holes to promote the growth of bone tissue. It is disadvantageous that the implant has a wedge shape only in one direction and is complicated to manufacture due to the large number of holes made on the side.
- cage structures are known under the name 'Brantigan Cage', the cage surfaces of which are covered with a large number of teeth in order to prevent undesired displacement of the cage.
- PEEK polyether ether ketone
- they have insufficient strength, which can lead to breakage of the cage structure under load.
- a simple thread is provided for the instrument holder, which results in inadequate instrument handling.
- the cuboid geometry gives a relatively small tilting moment, which has a disadvantageous effect.
- the object of the invention is to provide a cage-like intervertebral implant which has a double wedge-shaped geometry which is caused by two lordosis angles and which ensures improved instrument handling.
- Another object of the invention is to manufacture such
- this object is achieved with an implant according to the wording according to claim 1 and by a method for producing the same according to the wording according to claim 23.
- FIG. 1 perspective view of a cage
- FIG. 2 3A-3D sectional views of FIG. 2
- FIG. 5 is a sectional view of FIG. 2 along the developed radius line a - a '
- Fig. 7 embodiment of a cage with an intermediate wall and sloping rear part with recesses in plan view
- FIG. 1 shows a perspective view of a cage 100, which consists of a concave-curved side wall 1, a convex-curved side wall 2, a front part 3 and a rear part 4.
- the side walls 1 and 2 are connected to one another via intermediate walls 5 and 6, so that the interior of the cage is divided into cavities 7, 8 and 9.
- the inner side wall 1 is assigned a first inner radius of curvature R1 and the outer side wall 2 is assigned a second outer radius of curvature R2.
- the side walls 1, 2, the intermediate walls 5, 6, the front part 3 and the rear part 4 have upper or lower boundaries which define an upper or lower cage surface 10, 11.
- the concave-curved side wall 1 has round recesses 13, 14 and 15, which are provided approximately in the middle of the cavities 7, 8 and 9 and are conducive to the formation of the bone substance.
- the convex-curved side wall 2 can also have such recesses (not shown).
- the cage surfaces 10, 11 have, in the region of the front part 3, the rear part 4 and the intermediate walls 5, 6, tab-shaped elevations 24, 25, 26, 27 which run essentially parallel to the cage surfaces, the properties of which will be described later.
- the front part 3 is rounded and connects the side walls 1, 2 of the cage over the same wall thickness. It has bevels 23, 23 * on the front that facilitate the insertion and positioning of the cage in the intervertebral region.
- the rear part 4 is rectangular and connects the side walls 1, 2 of the cage also over the same wall thickness. It has a bore 20 on the rear side on, which is provided with an internal thread and is intended for the instrument attachment. Guide elements 21 and 22 are arranged on both sides of the bore 20, which are formed here, for example, as ribs, but can also consist of cutouts in the form of a half cylinder. The guide elements serve to guide the instrument and prevent any unauthorized rotation of the cage when the instrument is released.
- the transition of the guide elements or ribs 21, 22 to the surface of the rear part 4 is rounded on both sides of the rib in order to avoid any notch effects, which is important in the case of designs made of plastic or composite materials.
- holes 31, 32, respectively. 33 are provided for receiving a high-density metal marker. Balls and / or pins made of tantalum are particularly suitable for this.
- the pins are arranged in bores that are either perpendicular or parallel to the bore 20. This allows the position of the cage to be observed and assessed during the procedure using an image intensifier.
- FIG. 2 shows a top view of the cage 100 according to FIG. 1 with details of the position of the cuts A - A 'to D - D' and E - E 'to G - G'. The course of a radius line a - a ', which runs through the center of the cage, can also be seen.
- FIG. 3A-3D show sectional representations of the cage with sectional positions according to FIG. 2.
- FIG. 3A shows a section AA through the rear part 4.
- the bore 20 for the instrument holder and the bores 31 and 32 for the markers can be seen. It can also be seen that the height on the outer side of the rear part is greater than that on the inner side.
- the upper surface of the rear part thus no longer runs parallel to the lower part of the cage surfaces 10 and 11.
- the two surfaces form a lordosis angle ⁇ 2, which is 0.1 - 4 °, but preferably 2 °. In Fig. 3A this lordosis angle o2 is shown disproportionately to make it easier to see. It is shown on the lower side of the rear section with ⁇ 2 / 2.
- the cage surfaces 10 and 11 are a special case, respectively. Borderline case in parallel, which, however, represents a less preferred design of the cage.
- the elevations 24, 24 'are attached which are formed here parallel to the cage surfaces, but this need not be mandatory.
- 3B and 3C show a section B - B 'and C - C through the intermediate walls 5 and 6 with the elevations 25, 25' and 26, 26 ', respectively, on the parts of the cage surfaces 10, 11 are attached. Again, the elevations run parallel to the cage surfaces, which also reveal the lordosis angle ⁇ 2.
- 3D shows a section D - D 'through the front part 3.
- the bore 33 for the marker can be seen.
- the elevations 27, 27 ' can be seen, which are attached to the parts of the cage surfaces 10, 11 of the front part 3. Again, these elevations run essentially parallel to the cage surfaces, which also reveal the lordosis angle ⁇ 2.
- FIG. 4A-4C show sectional representations of the cage with sectional positions according to FIG. 2.
- Fig. 5 shows a sectional view of Fig. 2 along the developed radius line a - a '. Visible in the front part 3 are the bore 33 for the marker, the bevels 23, 23 'and the elevations 27, 27', in the rear part 4 the bore 20 and the elevations 24, 24 '.
- the intermediate walls 5, 6 have the elevations 25, 25 ', or 26, 26 '.
- the height of the front part 3 is greater than that of the rear part 4.
- the cage surfaces 10 and 11 no longer run parallel.
- the two surfaces form a so-called lordosis angle ⁇ 1, which is 2-8 °, but preferably 3 °, 5 ° or 7 °. In Fig. 5 this non-parallelism is shown disproportionately due to the lordosis angle ⁇ 1 in order to be easier to see.
- the cage structure can be modified within wide limits within the scope of this invention.
- the number of partitions 5, 6 or that of cavities 7, 8, 9 is not limited to 2 or 3.
- Cage structures with one or more partitions are possible.
- 6A and 6B each show a side view of the rear part with guide elements 21 and 22 arranged differently around the bore 20.
- the guide elements are arranged approximately parallel to the cage surfaces 10, 11, while in FIG. 6B they have an angle of approximately 45 ° to the cage surfaces. However, this angle can have any value from 0 to 90 °.
- the guide elements 21, 22 in turn, however, do not necessarily have to be arranged parallel to one another; they can also have a V-shaped arrangement.
- Titanium and its alloys are preferably used as metals or metal alloys, such as the titanium alloy Ti6-AI4-V according to ISO standard 5832-3.
- the metallic cage can have a hydroxyl apatite ceramic (HAK) coating or a tri-calcium phosphate (TCP) coating, which advantageously influences the long-term properties of the implant. Due to the curved shape of the cage, the cage has an advantageous high tilting moment M, which counteracts tipping of the cage effectively. In comparison with the tilting moment of a cuboid-shaped cage with the same central cross-section, same length and comparable cage structure, it has been shown that the cage structures according to the invention exceed this by a factor of at least 1.30. The factor for a cage according to FIG. 1 is 1.58.
- the advantages of the cage structure according to the invention result from the double wedge-shaped geometry which is caused by the two lordosis angles ⁇ 1 and ⁇ 2 and which adapts perfectly to the anatomy in the intervertebral region. For this reason, the term 'double-wedge-shaped cage' or 'DWS cage' is used for such a cage.
- the raised areas on the cage surfaces effectively prevent migration of the cage after the intervention during the healing process.
- Cage structures of the type described are characterized by high strength, which can be achieved despite a low material content. This greatly accelerates the formation of bone.
- CMI cage mass index
- a blank made of cage material is processed in a first direction by means of a high-pressure water jet.
- This known and economical cold-cutting process is usually operated with an abrasive additive at 3000 bar (U. W. Hunziker-Jost, Swiss precision manufacturing technology, pp. 81-86, C. Hanser Verlag, Kunststoff (1991)).
- the blank is clamped in such a way that the water jet is directed perpendicularly to the future cage surface.
- the contours of the side walls 1, 2, the front part 3, the rear part 4, the at least one intermediate wall 5, 6, the at least two cavities 7, 8, 9 and the guide elements 21, 22 are cut with high precision.
- the cut edges have hardly any fraying.
- cutting speeds of up to 100 mm / min for metals and up to 300 mm / min for composite materials are achieved with contour cuts.
- the cage blank thus separated from the blank is now re-clamped in a second step, specifically in a second direction that is essentially perpendicular to the first, where the cage blank is further processed with a milling cutter.
- the cage surfaces 10, 11 corresponding to the first lordosis angle ⁇ 1, the tabular ridges 24, 25, 26, 27 corresponding to the second lordosis angle ⁇ 2, the beveled surfaces 23, 23 'of the front part 3, the at least one recess in the side walls 1 and the first Hole 20 milled.
- the bore 20 is provided with the internal thread that is provided for the instrument holder. Small-caliber milling inserts are used on a CNC-controlled milling machine.
- Second holes 31, 32, 33 for the markers in the rear part and the marker in the front part are made, into which the markers are inserted as balls and / or pins made of tantalum.
- the essential process step is cutting with a water jet under high pressure.
- An advantageous separation process was chosen, which has proven to be particularly economical.
- FIG. 7 shows an exemplary embodiment of a cage with an intermediate wall and an oblique rear part with cutouts in a top view.
- the cage surfaces form a lordosis angle ⁇ 1 of 3 ° in the direction of the front part - rear part and a lordosis angle ⁇ 2 of 2 ° in the direction of the centers for the radii of curvature of the curved side walls 1 and 2.
- the height of the intermediate wall with elevation is 8.1 mm on the outside and 7.8 mm on the inside.
- the side wall 1 has two lateral recesses which lie approximately in the middle of the cavities 7 and 9.
- the inner radius of curvature R1 is 11 mm, the outer radius of curvature R2 is 19 mm, the corresponding centers being offset by 1.1 mm.
- the cage was made of CFRP / PEEK, with a BYJET water jet cutting system (Bystronic Laser AG, CH-3362 Niederönz) being used in the first process step.
- the cage structure according to FIG. 6 was made from a titanium alloy Ti6-AI4-V according to ISO standard 5832-3, a BYJET water jet cutting system also being used in the first process step.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50100765T DE50100765D1 (de) | 2000-03-22 | 2001-03-21 | Käfigartiges zwischenwirbelimplantat |
CA002404086A CA2404086A1 (en) | 2000-03-22 | 2001-03-21 | Cage-type intervertebral implant |
AU2001240410A AU2001240410A1 (en) | 2000-03-22 | 2001-03-21 | Cage-type intervertebral implant |
DK01911328T DK1274375T3 (da) | 2000-03-22 | 2001-03-21 | Burlignende intervertebralimplantat |
US09/979,185 US6699288B2 (en) | 2000-03-22 | 2001-03-21 | Cage-type intervertebral implant |
JP2001568345A JP2003527196A (ja) | 2000-03-22 | 2001-03-21 | ケージ型椎間インプラント |
AT01911328T ATE251429T1 (de) | 2000-03-22 | 2001-03-21 | Käfigartiges zwischenwirbelimplantat |
EP01911328A EP1274375B1 (de) | 2000-03-22 | 2001-03-21 | Käfigartiges zwischenwirbelimplantat |
NO20024491A NO20024491L (no) | 2000-03-22 | 2002-09-19 | Burlignende mellomvirvelimplantat |
HK03105080.7A HK1052627B (zh) | 2000-03-22 | 2003-07-14 | 籠架形椎間植入物 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH542/00 | 2000-03-22 | ||
CH5422000 | 2000-03-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001070144A1 true WO2001070144A1 (de) | 2001-09-27 |
Family
ID=4519131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2001/000179 WO2001070144A1 (de) | 2000-03-22 | 2001-03-21 | Käfigartiges zwischenwirbelimplantat |
Country Status (16)
Country | Link |
---|---|
US (1) | US6699288B2 (es) |
EP (1) | EP1274375B1 (es) |
JP (1) | JP2003527196A (es) |
KR (1) | KR20030007469A (es) |
CN (1) | CN1419431A (es) |
AT (1) | ATE251429T1 (es) |
AU (1) | AU2001240410A1 (es) |
CA (1) | CA2404086A1 (es) |
DE (1) | DE50100765D1 (es) |
DK (1) | DK1274375T3 (es) |
ES (1) | ES2208569T3 (es) |
HK (1) | HK1052627B (es) |
NO (1) | NO20024491L (es) |
PT (1) | PT1274375E (es) |
TR (1) | TR200302303T4 (es) |
WO (1) | WO2001070144A1 (es) |
Cited By (28)
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WO2002089712A1 (en) * | 2001-05-03 | 2002-11-14 | David Gerber | Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure |
FR2841124A1 (fr) * | 2002-06-25 | 2003-12-26 | Eurosurgical | Cage intersomatique reversible et son dispositif de mise en place entre le corps vertebraux d'une colonne vertebrale |
EP1384455A1 (en) * | 2002-07-23 | 2004-01-28 | DePuy AcroMed, Inc. | Surgical trial implant |
US6830570B1 (en) | 1999-10-21 | 2004-12-14 | Sdgi Holdings, Inc. | Devices and techniques for a posterior lateral disc space approach |
EP1570222A2 (en) * | 2002-11-13 | 2005-09-07 | SYNTHES AG Chur | Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure |
DE102004036954A1 (de) * | 2004-07-21 | 2006-03-16 | Ossacur Ag | Implantierbarer Körper für die Spinalfusion |
US7060073B2 (en) | 1999-10-21 | 2006-06-13 | Sdgi Holdings, Inc. | Devices and techniques for a posterior lateral disc space approach |
US7192447B2 (en) * | 2002-12-19 | 2007-03-20 | Synthes (Usa) | Intervertebral implant |
US7229477B2 (en) | 1999-02-25 | 2007-06-12 | Depuy Acromed, Inc. | Spinal fusion implant |
US7273498B2 (en) | 1997-06-03 | 2007-09-25 | Warsaw Orthopedic, Inc. | Open intervertebral spacer |
US7479160B2 (en) * | 1998-10-28 | 2009-01-20 | Warsaw Orthopedic, Inc. | Interbody fusion grafts and instrumentation |
US7500991B2 (en) | 2002-12-31 | 2009-03-10 | Depuy Acromed, Inc. | Banana cage |
US7935148B2 (en) | 2006-01-09 | 2011-05-03 | Warsaw Orthopedic, Inc. | Adjustable insertion device for a vertebral implant |
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US7056321B2 (en) | 2000-08-01 | 2006-06-06 | Endius, Incorporated | Method of securing vertebrae |
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US20040176853A1 (en) * | 2003-03-05 | 2004-09-09 | Sennett Andrew R. | Apparatus and method for spinal fusion using posteriorly implanted devices |
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JP4378343B2 (ja) | 2003-06-24 | 2009-12-02 | ジンテーズ ゲゼルシャフト ミト ベシュレンクテル ハフツング | 椎間腔用のインプラント |
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US20060229627A1 (en) | 2004-10-29 | 2006-10-12 | Hunt Margaret M | Variable angle spinal surgery instrument |
US20050071005A1 (en) * | 2003-09-30 | 2005-03-31 | Olivier Carli | Intersomatic lumbar implant |
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US9445916B2 (en) * | 2003-10-22 | 2016-09-20 | Pioneer Surgical Technology, Inc. | Joint arthroplasty devices having articulating members |
US7837732B2 (en) * | 2003-11-20 | 2010-11-23 | Warsaw Orthopedic, Inc. | Intervertebral body fusion cage with keels and implantation methods |
US20050149192A1 (en) * | 2003-11-20 | 2005-07-07 | St. Francis Medical Technologies, Inc. | Intervertebral body fusion cage with keels and implantation method |
US7137997B2 (en) * | 2003-12-29 | 2006-11-21 | Globus Medical, Inc. | Spinal fusion implant |
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US7918891B1 (en) | 2004-03-29 | 2011-04-05 | Nuvasive Inc. | Systems and methods for spinal fusion |
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US8940053B2 (en) | 2005-05-06 | 2015-01-27 | Titan Spine, Llc | Spinal implant and integration plate for optimizing vertebral endplate contact load-bearing edges |
US9655745B2 (en) | 2005-05-06 | 2017-05-23 | Titan Spine, Llc | Methods for manufacturing implants having integration surfaces |
US9125756B2 (en) | 2005-05-06 | 2015-09-08 | Titan Spine, Llc | Processes for producing regular repeating patterns on surfaces of interbody devices |
US9433511B2 (en) | 2005-05-06 | 2016-09-06 | Titan Spine, Llc | Interbody spinal implant having a roughened surface topography |
US9168147B2 (en) | 2005-05-06 | 2015-10-27 | Titan Spine, Llc | Self-deploying locking screw retention device |
US7935148B2 (en) | 2006-01-09 | 2011-05-03 | Warsaw Orthopedic, Inc. | Adjustable insertion device for a vertebral implant |
US9186209B2 (en) | 2011-07-22 | 2015-11-17 | Boston Scientific Scimed, Inc. | Nerve modulation system having helical guide |
US9314337B2 (en) | 2011-11-01 | 2016-04-19 | Titan Spine, Llc | Microstructured implant surfaces |
US8992619B2 (en) | 2011-11-01 | 2015-03-31 | Titan Spine, Llc | Microstructured implant surfaces |
US9848995B2 (en) | 2012-03-20 | 2017-12-26 | Titan Spine Llc | Process for fabricating bioactive vertebral endplate bone-contacting surfaces on a spinal implant |
US9642721B2 (en) | 2012-10-02 | 2017-05-09 | Titan Spine, Llc | Implants with self-deploying anchors |
US9498349B2 (en) | 2012-10-09 | 2016-11-22 | Titan Spine, Llc | Expandable spinal implant with expansion wedge and anchor |
US9615935B2 (en) | 2014-01-30 | 2017-04-11 | Titan Spine, Llc | Thermally activated shape memory spring assemblies for implant expansion |
Also Published As
Publication number | Publication date |
---|---|
JP2003527196A (ja) | 2003-09-16 |
ES2208569T3 (es) | 2004-06-16 |
KR20030007469A (ko) | 2003-01-23 |
AU2001240410A1 (en) | 2001-10-03 |
US20030100950A1 (en) | 2003-05-29 |
HK1052627A1 (en) | 2003-09-26 |
TR200302303T4 (tr) | 2004-01-21 |
DE50100765D1 (de) | 2003-11-13 |
US6699288B2 (en) | 2004-03-02 |
EP1274375B1 (de) | 2003-10-08 |
CN1419431A (zh) | 2003-05-21 |
DK1274375T3 (da) | 2004-02-09 |
ATE251429T1 (de) | 2003-10-15 |
NO20024491L (no) | 2002-11-14 |
HK1052627B (zh) | 2004-03-19 |
PT1274375E (pt) | 2004-03-31 |
EP1274375A1 (de) | 2003-01-15 |
NO20024491D0 (no) | 2002-09-19 |
CA2404086A1 (en) | 2002-09-19 |
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